Supernatural is an American television drama series created by writer and producer Eric Kripke. It was initially broadcast by The WB network from September 13, 2005, but after the first season, the WB and UPN networks merged to form The CW network, which was the final broadcaster for the show in the United States by the series' conclusion on November 19, 2020, with 327 episodes aired. The Winchesters, a spin-off prequel/sequel series to Supernatural developed by Robbie Thompson, Jensen Ackles an…